// Menus JavaScript

// Allows hovering over the menu block to work by setting relevant classes.
function menuHover(elName, prevEl, over)
{
    var el = document.getElementById(elName);
    var last = (el.className.substring(0, 8) == 'menu-lst');
    el.className = over?(last?'menu-lst-hover':'menu-box-hover'):(last?'menu-lst':'menu-box');
    if (prevEl.length > 0)
    {
        el = document.getElementById(prevEl);
        el.className = over?'menu-box-prev':'menu-box';
    }
}
// Called when a menu div is clicked on.
function menuClick(url)
{
    window.location.href = url;
}
// Called when mousing over a menu image.
function showMenuBackground(menuId, show)
{
    if (show) document.getElementById(menuId).style.backgroundImage = document.getElementById('menubck').style.backgroundImage;
    else document.getElementById(menuId).style.backgroundImage = 'none';
}